Halli og Laddi
type: MusicGroup
popularity: 15
followers: 2501
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29de99c85cfb5bf8b2b8382a6455b00ad49be9538931ab5c2a72c25b621bde68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a0fc571-437a-4e1b-b822-4052223e9b16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a0fc571-437a-4e1b-b822-4052223e9b16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5a0fc571-437a-4e1b-b822-4052223e9b16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x29de99c85cfb5bf8b2b8382a6455b00ad49be9538931ab5c2a72c25b621bde68","name":"Halli og Laddi","registered_at":"2026-06-14T13:57:26Z","symbol":"NIM0474250","token_address":"0x454fe5c94233b51f1a67e4b0659d95565d729251","type":"artist","uuid":"5a0fc571-437a-4e1b-b822-4052223e9b16"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29de99c85cfb5bf8b2b8382a6455b00ad49be9538931ab5c2a72c25b621bde68. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a0fc571-437a-4e1b-b822-4052223e9b16.json and https://artists.proofprofile.net/proofs/artist/5a0fc571-437a-4e1b-b822-4052223e9b16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x29de99c85cfb5bf8b2b8382a6455b00ad49be9538931ab5c2a72c25b621bde68","name":"Halli og Laddi","registered_at":"2026-06-14T13:57:26Z","symbol":"NIM0474250","token_address":"0x454fe5c94233b51f1a67e4b0659d95565d729251","type":"artist","uuid":"5a0fc571-437a-4e1b-b822-4052223e9b16"}
album: Látum sem ekkert c
  type: MusicAlbum
  date published: 1976-01-01
album: Fyrr má nú aldeilis fyrrvera
  type: MusicAlbum
  date published: 1977-01-01
album: Hlúnkur er þetta
  type: MusicAlbum
  date published: 1978-01-01
album: Umhverfis jörðina á 45 mínútum
  type: MusicAlbum
  date published: 1980-01-01
album: Halli og Laddi í Strumpalandi
  type: MusicAlbum
  date published: 1995
album: Halli og Laddi í Strumpalandi
  type: MusicAlbum
  date published: 1995-01-01
album: Royi Roggers
  type: MusicAlbum
  date published: 2002-01-01
  track: Austurstræti
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247617
    explicit: false
    by artist: Halli og Laddi
    in album: Royi Roggers
      type: MusicAlbum
      date published: 2002-01-01
    isrc code: ISA110200650
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T03:59:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x91e43fbf5112e223f51f59e3babe2bc6a6f7da77433534fc4fd5b9616dae17cc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957653
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957653
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA110200650
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T04:35:02Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e43fbf5112e223f51f59e3babe2bc6a6f7da77433534fc4fd5b9616dae17cc. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA110200650.
      date published: 2026-07-12T04:35:02Z
    audio: Austurstræti
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.481
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.557
      additional property: Energy
        type: PropertyValue
        value: 0.613
      additional property: Speechiness
        type: PropertyValue
        value: 0.329
      additional property: Acousticness
        type: PropertyValue
        value: 0.531
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.844
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.826
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.938
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Royi Roggers
  type: MusicAlbum
  date published: 2002-01-01
album: Brot af því besta, Halli og Laddi
  type: MusicAlbum
  date published: 2005
album: Brot af því besta, Halli og Laddi
  type: MusicAlbum
  date published: 2005-01-01
album: Brot af því besta, Halli og Laddi
  type: MusicAlbum
  date published: 2005-01-01